Tutorial 6

Suppose we require the margin of error not to be more

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Unformatted text preview: error is given by half the length of a confidence interval. Suppose we require the margin of error not to be more than a number E at the (1 − α)% confidence interval, we need a sample of size n such that ￿ σ ￿2 n ≥ zα 2 E Hypothesis testing for the population mean when variance is known Assume the population follows Normal distribution with mean µ and variance σ 2 (known). Test Left-tailed Right-tailed H0 µ = µ0 or µ ≥ µ0 µ = µ0 or µ ≤ µ0 H1 µ < µ0 µ > µ0 Two-tailed µ = µ0 µ = µ0 Reject H0 if and only i...
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This note was uploaded on 08/26/2013 for the course STAT 0302 taught by Professor Guo during the Spring '12 term at HKU.

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